dysprosium
Let an agent identify dysprosium and its properties, relay isotopes, production, uses and supply issues from reference sources, and distinguish it from neighbouring lanthanides.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent identify dysprosium and its properties, relay isotopes, production, uses and supply issues from reference sources, and distinguish it from neighbouring lanthanides.
A chemical element with symbol Dy and atomic number 66, a silvery lanthanide with one of the highest magnetic strengths of the elements, obtained from monazite, bastnasite and ion-adsorption clays, used above all as an additive in neodymium magnets to preserve magnetism at high temperature in motors and wind turbines, and in control rods, dosimeters, lasers and data storage, with seven stable isotopes from dysprosium-156 to dysprosium-164; dysprosium is a critical material with concentrated supply.
What it is for: High-temperature magnets, reactor control and specialised uses.
It can be relay properties and isotopes; explain production and uses; relay supply and policy issues; distinguish from other lanthanides.
Distinguishing features
High magnetic moment
Magnet additive
Neutron absorption
Critical material status
What it looks like
A soft silvery metal that tarnishes slowly in air.
Physical character
atomic number: 66 Z
standard atomic weight: 162.5 u
melting point: 1412 degrees C
stable isotopes: 7 count - Dy-156, 158, 160, 161, 162, 163, 164
How it is recognised
Element 66, symbol Dy
Lanthanide additive for heat-resistant magnets
Terbium and holmium are the neighbouring lanthanides
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is added to - for temperature resistance
is adjacent to - element 65
In practice
Families and kinds
dysprosium metal and alloys
dysprosium compounds such as the oxide
stable isotopes from dysprosium-156 to dysprosium-164
dysprosium in magnets, control rods and dosimeters
Identifiers
symbol Dy
CAS 7429-91-6
Standards and regulation
Critical raw material listings
Rare earth export controls
Chemical safety data sheets
Failure modes and hazards
Supply concentration and price spikes
Environmental impact of ion-adsorption clay mining
Confusing with neighbouring lanthanides
Also called
+9
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.dysprosium
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Identify What dysprosium is.
Identity.
Properties
Properties.
Properties
Properties.
- What are the physical, chemical and magnetic properties of dysprosium? definition
- Is the question about dysprosium or a neighbouring lanthanide? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- Which isotopes exist, and how are they used? definition
- Which entry fits the specific isotope? action
Source Supply.
Supply.
Production
Mining and separation.
Production
Production.
- Where is dysprosium mined and separated, and who produces it, with sources? provenance
- Which sources are cited? provenance
Policy
Critical material policy.
Policy
Policy.
- Why is dysprosium listed as critical, and what policies address supply, with positions attributed? provenance
- Is the presentation neutral? boundary
Use Uses.
Application.
Magnets
Magnets.
Magnets
Magnets.
- How does dysprosium improve neodymium magnets, and how is its use being reduced? provenance
- Which entry fits neodymium magnet? action
Other
Other uses.
Other
Other.
- How is dysprosium used in control rods, dosimeters, lasers and data storage? provenance
- Which references are standard? provenance
Context History and recycling.
Context.
Discovery
Discovery.
Discovery
Discovery.
- How was dysprosium discovered by Lecoq de Boisbaudran in 1886, and why was it named hard to get at? provenance
- Which entry fits the history of the rare earths? action
Recycling
Recycling.
Recycling
Recycling.
- How is dysprosium recovered from magnets, and what progress exists? provenance
- Which entry fits rare earth recycling? action
What the second pass must settle
- Should the magnet application be the primary linked entry?
- How should supply data be linked?
- The registry entry has merged aliases naming isotopes; should they be split off?